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Title: Pulsed neutron detector

Abstract

A pulsed neutron detector and system for detecting low intensity fast neutron pulses has a body of beryllium adjacent a body of hydrogenous material the latter of which acts as a beta particle detector, scintillator, and moderator. The fast neutrons (defined as having En>1.5 MeV) react in the beryllium and the hydrogenous material to produce larger numbers of slow neutrons than would be generated in the beryllium itself and which in the beryllium generate hellium-6 which decays and yields beta particles. The beta particles reach the hydrogenous material which scintillates to yield light of intensity related to the number of fast neutrons. A photomultiplier adjacent the hydrogenous material (scintillator) senses the light emission from the scintillator. Utilization means, such as a summing device, sums the pulses from the photo-multiplier for monitoring or other purposes.

Inventors:
 [1];  [2]
  1. (late of Albuquerque, NM)
  2. (Livermore, CA)
Issue Date:
OSTI Identifier:
866889
Patent Number(s):
4814623
Application Number:
07/041,062
Assignee:
University of New Mexico (Albuquerque, NM) OSTI
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
pulsed; neutron; detector; detecting; intensity; fast; pulses; beryllium; adjacent; hydrogenous; material; latter; beta; particle; scintillator; moderator; neutrons; defined; mev; react; produce; larger; slow; generated; generate; hellium-6; decays; yields; particles; reach; scintillates; yield; light; related; photomultiplier; senses; emission; utilization; means; summing; device; sums; photo-multiplier; monitoring; purposes; light emission; fast neutron; neutron detector; particle detector; pulsed neutron; fast neutrons; beta particles; neutron pulses; hydrogenous material; produce larger; beta particle; /250/

Citation Formats

Robertson, deceased, J. Craig, and Rowland, Mark S. Pulsed neutron detector. United States: N. p., 1989. Web.
Robertson, deceased, J. Craig, & Rowland, Mark S. Pulsed neutron detector. United States.
Robertson, deceased, J. Craig, and Rowland, Mark S. Tue . "Pulsed neutron detector". United States. https://www.osti.gov/servlets/purl/866889.
@article{osti_866889,
title = {Pulsed neutron detector},
author = {Robertson, deceased, J. Craig and Rowland, Mark S.},
abstractNote = {A pulsed neutron detector and system for detecting low intensity fast neutron pulses has a body of beryllium adjacent a body of hydrogenous material the latter of which acts as a beta particle detector, scintillator, and moderator. The fast neutrons (defined as having En>1.5 MeV) react in the beryllium and the hydrogenous material to produce larger numbers of slow neutrons than would be generated in the beryllium itself and which in the beryllium generate hellium-6 which decays and yields beta particles. The beta particles reach the hydrogenous material which scintillates to yield light of intensity related to the number of fast neutrons. A photomultiplier adjacent the hydrogenous material (scintillator) senses the light emission from the scintillator. Utilization means, such as a summing device, sums the pulses from the photo-multiplier for monitoring or other purposes.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {3}
}

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